Clipping into your pedals has a significant impact on your performance and power. You're able to push and pull on the pedals for higher output. The Shimano SH-IC500 Women's Shoes are performance indoor SPD cycling shoe with a comfortable fit and breathability. They have a breathable, comfortable sock mesh upper design and easily open, tighten, and adjust with the Boa L6 dial. The full-length reinforced plate provides stable power transfer and the full-length rubber sole makes it easy to walk.